Journal ArticleDOI
Polymerization of surface-active monomers. I: Micellization and polymerization of higher alkyl salts of dimethylaminoethyl methacrylate
Reads0
Chats0
TLDR
In this paper, the critical micelle concentration in water at 25°C was determined by electrical conductivity and dye(azobenzene) solubilization methods and the relation log(cmc) = 1.46-0.31N was obtained, where cmc is in mmol L−1 and N corresponds to carbon number of alkyl bromides used for the monomer preparations.Abstract:
Micellization of cationic salts of dimethylaminoethyl methacrylate (DMAEMA) quaternized with n-alkyl bromides such as octyl, lauryl, myristyl, and stearyl bromide and their polymerizations were investigated. The critical micelle concentration (cmc) in water at 25°C was determined by electrical conductivity and dye(azobenzene) solubilization methods and the relation log(cmc) = 1.46–0.31N was obtained, where cmc is in mmol L−1 and N corresponds to carbon number of alkyl bromides used for the monomer preparations. All of these monomeric salts exhibited a high radical polymerizability in water and benzene. The polymerizations in water appeared to proceed with a higher rate with increasing a chain length of the alkyl moiety of the monomers and those in benzene gave the polymers with a remarkably high viscosity. The rate of polymerization of lauryl bromide salt in anisotropic solutions (in water and benzene) was exceedingly fast as compared with that in isotropic solution(in acetonitrile). All of the polymers obtained here were insoluble in water. Solubility characteristics of these monomers and polymers in other solvents were also presented. The reduced viscosity, in dimethylformamide and methanol, of poly(lauryl bromide salt) prepared in water increased with dilution but that for the polymer obtained in benzene exhibited an inverse concentration dependence. Some discussions were made on the peculiarities of the polymerizations of these monomers and the resulting polymers.read more
Citations
More filters
Book ChapterDOI
Molecular concepts, self-organisation and properties of polysoaps
TL;DR: In this paper, a review of water-soluble polymers characterized by surfactant side chains and related amphiphilic polymers is presented, and rules for useful molecular architectures are given.
Book ChapterDOI
Reactive surfactants in emulsion polymerization
Alain Guyot,K. Tauer +1 more
TL;DR: In this article, the authors present a literature review of the state of the art and illustrate the increasing interest in this field and discuss the main trends and some prospects are discussed in the conclusions.
Journal ArticleDOI
Novel quaternary ammonium amphiphilic (meth)acrylates: 1. Synthesis, melting and interfacial behaviour
S.M. Hamid,David C. Sherrington +1 more
TL;DR: A number of quaternary ammonium amphiphilic (meth)acrylates have been prepared in good yield, and the melting points, critical micelle concentrations (c.m.c.) and surface active properties of each have been investigated as mentioned in this paper.
Journal Article
Reactive surfactants for emulsion polymerization
TL;DR: In this paper, the authors present a literature review of the state of the art and illustrate the increasing interest in this field and discuss the main trends and some prospects are discussed in the conclusions.
Journal ArticleDOI
Reactive Surfactants in Heterophase Polymerization. 7.† Emulsion Copolymerization Mechanism Involving Three Anionic Polymerizable Surfactants (Surfmers) with Styrene−Butyl Acrylate−Acrylic Acid
Harold A. S. Schoonbrood,María J. Unzué,§ and Ole-Jacob Beck,José M. Asua,Amaia Montoya Goñi and,David C. Sherrington +5 more
TL;DR: In this article, the mechanisms of copolymerization of three anionic polymerizable surfactants (surfmers)a methacrylic ester, a crotonic ester and a maleic diester in the emulsion terpolymerization process of styrene/butyl acrylate/acrylic acid (S/BA/AA) were investigated.
References
More filters
Journal ArticleDOI
Cationic Quaternary Polyelectrolytes—A Literature Review
TL;DR: A literature survey of quaternary ammonium, sulfonium, and phosphonium polymers can be found in this article, where the authors present a number of examples.
Journal ArticleDOI
The ultraviolet absorption spectrum as a criterion of the type of solubilization
TL;DR: The ultraviolet spectrum of the solubilizate affords a sensitive method for determining different modes of Solubilization which have been interpreted to be (a) inclusion into the hydrocarbon interior of the micelles, (b) deep penetration of the palisade layer, (c) short penetration, and (d) adsorption on the surface of the mouselles as mentioned in this paper.
Journal ArticleDOI
Synthesis and homopolymerization studies of vinylimidazolium salts
J. C. Salamone,J. C. Salamone,S. C. Israel,S. C. Israel,P. Taylor,P. Taylor,Barry B. Snider,Barry B. Snider +7 more
TL;DR: In this paper, the preparation and characterizations of several monomeric vinylimidazolium salts are presented from the quaternizations of 1-vinylimidine with n-alkyl iodides and with dimethyl sulphate.
Related Papers (5)
Polymerization of surface‐active monomers. II. Polymerization of quarternary alkyl salts of dimethylaminoethyl methacrylate with a different alkyl chain length
Novel quaternary ammonium amphiphilic (meth)acrylates: 1. Synthesis, melting and interfacial behaviour
S.M. Hamid,David C. Sherrington +1 more